在 R 编程中获取矩阵的行列式 - det()函数

R语言中的det()函数用于计算指定矩阵的行列式。

Syntax: det(x, …)

Parameters:
x: matrix

示例 1：

# R program to illustrate
# det function
  
# Initializing a matrix with
# 3 rows and 3 columns
x <- matrix(c(3, 2, 6, -1, 7, 3, 2, 6, -1), 3, 3)
  
# Getting the matrix representation
x
  
# Calling the det() function
det(x)

输出：

[, 1] [, 2] [, 3]
[1, ]    3   -1    2
[2, ]    2    7    6
[3, ]    6    3   -1

[1] -185

示例 2：

# R program to illustrate
# det function
  
# Initializing a matrix with
# 3 rows and 3 columns
x <- matrix(c(3, 2, 6, -1, 7, 3, 2, 6, -1), 3, 3)
  
# Getting the matrix representation
x
  
# Getting the transpose of the matrix x
y <- t(x)
y
  
# Calling the det() function
det(y)

输出：

[, 1] [, 2] [, 3]
[1, ]    3   -1    2
[2, ]    2    7    6
[3, ]    6    3   -1

     [, 1] [, 2] [, 3]
[1, ]    3    2    6
[2, ]   -1    7    3
[3, ]    2    6   -1

[1] -185